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| package util
import (
"fmt"
"strconv"
"strings"
"time"
"github.com/google/uuid"
"github.com/pkg/errors"
)
func DefaultValue[T any]() T {
var ret T
return ret
}
func ParseBoolSimple(r any) bool {
ret, _ := ParseBool(r, "", true)
return ret
}
func ParseFloatSimple(r any) float64 {
ret, _ := ParseFloat(r, "", true)
return ret
}
func ParseIntSimple(r any) int {
ret, _ := ParseInt(r, "", true)
return ret
}
func ParseInt16Simple(r any) int16 {
ret, _ := ParseInt16(r, "", true)
return ret
}
func ParseInt32Simple(r any) int32 {
ret, _ := ParseInt32(r, "", true)
return ret
}
func ParseInt64Simple(r any) int64 {
ret, _ := ParseInt64(r, "", true)
return ret
}
func ParseJSONSimple(r any) any {
ret, _ := ParseJSON(r, "", true)
return ret
}
func ParseMapSimple(r any) ValueMap {
ret, _ := ParseMap(r, "", true)
return ret
}
func ParseOrderedMapSimple(r any) *OrderedMap[any] {
ret, _ := ParseOrderedMap(r, "", true)
return ret
}
func ParseStringSimple(r any) string {
ret, _ := ParseString(r, "", true)
return ret
}
func ParseTimeSimple(r any) *time.Time {
ret, _ := ParseTime(r, "", true)
return ret
}
func ParseUUIDSimple(r any) *uuid.UUID {
ret, _ := ParseUUID(r, "", true)
return ret
}
func ParseBool(r any, path string, allowEmpty bool) (bool, error) {
switch t := r.(type) {
case bool:
return t, nil
case string:
return t == BoolTrue, nil
case nil:
if !allowEmpty {
return false, errors.Errorf("could not find bool for path [%s]", path)
}
return false, nil
default:
return false, invalidTypeError(path, "bool", t)
}
}
func ParseFloat(r any, path string, allowEmpty bool) (float64, error) {
switch t := r.(type) {
case int:
return float64(t), nil
case int64:
return float64(t), nil
case float64:
return t, nil
case string:
ret, err := strconv.ParseFloat(t, 32)
return ret, err
case nil:
if !allowEmpty {
return 0, errors.Errorf("could not find float for path [%s]", path)
}
return 0, nil
default:
return 0, invalidTypeError(path, "float", t)
}
}
func ParseInt(r any, path string, allowEmpty bool) (int, error) {
ret, err := ParseInt64(r, path, allowEmpty)
if err != nil {
return 0, err
}
return int(ret), nil
}
func ParseInt16(r any, path string, allowEmpty bool) (int16, error) {
switch t := r.(type) {
case int:
return int16(t), nil
case int16:
return t, nil
case int32:
return int16(t), nil
case int64:
return int16(t), nil
case float64:
return int16(t), nil
case string:
ret, err := strconv.ParseInt(t, 10, 16)
return int16(ret), err
case []byte:
ret, err := strconv.ParseInt(string(t), 10, 16)
return int16(ret), err
case nil:
if !allowEmpty {
return 0, errors.Errorf("could not find int16 for path [%s]", path)
}
return 0, nil
default:
return 0, invalidTypeError(path, "int16", t)
}
}
func ParseInt32(r any, path string, allowEmpty bool) (int32, error) {
switch t := r.(type) {
case int:
return int32(t), nil
case int32:
return t, nil
case int64:
return int32(t), nil
case float64:
return int32(t), nil
case string:
ret, err := strconv.ParseInt(t, 10, 32)
return int32(ret), err
case []byte:
ret, err := strconv.ParseInt(string(t), 10, 32)
return int32(ret), err
case nil:
if !allowEmpty {
return 0, errors.Errorf("could not find int32 for path [%s]", path)
}
return 0, nil
default:
return 0, invalidTypeError(path, "int32", t)
}
}
func ParseInt64(r any, path string, allowEmpty bool) (int64, error) {
switch t := r.(type) {
case int:
return int64(t), nil
case int32:
return int64(t), nil
case int64:
return t, nil
case float64:
return int64(t), nil
case string:
ret, err := strconv.ParseInt(t, 10, 64)
return ret, err
case []byte:
ret, err := strconv.ParseInt(string(t), 10, 64)
return ret, err
case nil:
if !allowEmpty {
return 0, errors.Errorf("could not find int for path [%s]", path)
}
return 0, nil
default:
return 0, invalidTypeError(path, "int", t)
}
}
func ParseJSON(r any, path string, allowEmpty bool) (any, error) {
switch t := r.(type) {
case []byte:
return FromJSONAny(t)
case string:
return FromJSONAny([]byte(t))
case nil:
if !allowEmpty {
return nil, errors.Errorf("could not find json for path [%s]", path)
}
return nil, nil
default:
return t, nil
}
}
func ParseMap(r any, path string, allowEmpty bool) (ValueMap, error) {
switch t := r.(type) {
case ValueMap:
if (!allowEmpty) && len(t) == 0 {
return nil, errors.New("empty map")
}
return t, nil
case map[string]any:
if (!allowEmpty) && len(t) == 0 {
return nil, errors.New("empty map")
}
return t, nil
case string:
if strings.TrimSpace(t) == "" {
return nil, nil
}
ret, err := FromJSONMap([]byte(t))
if err != nil {
return nil, wrapError(path, "time", errors.Wrap(err, "invalid JSON"))
}
return ret, err
case []byte:
if len(t) == 0 {
return nil, nil
}
ret, err := FromJSONMap(t)
if err != nil {
return nil, wrapError(path, "time", errors.Wrap(err, "invalid JSON"))
}
return ret, err
case nil:
if !allowEmpty {
return nil, errors.Errorf("could not find map for path [%s]", path)
}
return nil, nil
default:
return nil, invalidTypeError(path, "map", t)
}
}
func ParseOrderedMap(r any, path string, allowEmpty bool) (*OrderedMap[any], error) {
switch t := r.(type) {
case *OrderedMap[any]:
if (!allowEmpty) && len(t.Map) == 0 {
return nil, errors.New("empty map")
}
return t, nil
case ValueMap:
if (!allowEmpty) && len(t) == 0 {
return nil, errors.New("empty map")
}
o := NewOrderedMap[any](false, len(t))
for k, v := range t {
o.Set(k, v)
}
return o, nil
case map[string]any:
if (!allowEmpty) && len(t) == 0 {
return nil, errors.New("empty map")
}
o := NewOrderedMap[any](false, len(t))
for k, v := range t {
o.Set(k, v)
}
return o, nil
case string:
if strings.TrimSpace(t) == "" {
return nil, nil
}
ret, err := FromJSONOrderedMap[any]([]byte(t))
if err != nil {
return nil, wrapError(path, "time", errors.Wrap(err, "invalid JSON"))
}
return ret, err
case []byte:
if len(t) == 0 {
return nil, nil
}
ret, err := FromJSONOrderedMap[any](t)
if err != nil {
return nil, wrapError(path, "time", errors.Wrap(err, "invalid JSON"))
}
return ret, err
case nil:
if !allowEmpty {
return nil, errors.Errorf("could not find ordered map for path [%s]", path)
}
return nil, nil
default:
return nil, invalidTypeError(path, "ordered map", t)
}
}
func ParseString(r any, path string, allowEmpty bool) (string, error) {
switch t := r.(type) {
case rune:
return string(t), nil
case string:
if (!allowEmpty) && t == "" {
return "", errors.New("empty string")
}
return t, nil
case []byte:
if (!allowEmpty) && len(t) == 0 {
return "", errors.New("empty string")
}
return string(t), nil
case []string:
if (!allowEmpty) && (len(t) == 0 || t[0] == "") {
return "", errors.New("empty string")
}
return StringJoin(t, "||"), nil
case nil:
if !allowEmpty {
return "", errors.Errorf("could not find string for path [%s]", path)
}
return "", nil
default:
return fmt.Sprint(t), nil
}
}
func ParseTime(r any, path string, allowEmpty bool) (*time.Time, error) {
switch t := r.(type) {
case time.Time:
return &t, nil
case *time.Time:
if t == nil && (!allowEmpty) {
return nil, errors.New("empty time")
}
return t, nil
case string:
ret, err := TimeFromString(t)
if err != nil {
return nil, wrapError(path, t, err)
}
if ret == nil && (!allowEmpty) {
return nil, errors.Errorf("invalid time [%s]", t)
}
return ret, nil
case nil:
if !allowEmpty {
return nil, errors.Errorf("could not find time for path [%s]", path)
}
return nil, nil
default:
return nil, invalidTypeError(path, "time", t)
}
}
func ParseUUID(r any, path string, allowEmpty bool) (*uuid.UUID, error) {
switch t := r.(type) {
case *uuid.UUID:
if t == nil && (!allowEmpty) {
return nil, errors.New("empty uuid")
}
return t, nil
case uuid.UUID:
if t == uuid.Nil && (!allowEmpty) {
return nil, errors.New("empty uuid")
}
return &t, nil
case []byte:
if len(t) == 16 {
ret, err := uuid.FromBytes(t)
if err != nil {
return nil, err
}
if ret == uuid.Nil && (!allowEmpty) {
return nil, errors.Errorf("could not parse uuid from path [%s]", path)
}
return &ret, nil
}
return nil, errors.Errorf("invalid uuid bytes with length [%d]", len(t))
case string:
if t == "" && allowEmpty {
return nil, nil
}
ret, err := uuid.Parse(t)
if err != nil {
return nil, err
}
if ret == uuid.Nil && (!allowEmpty) {
return nil, errors.Errorf("could not find uuid for path [%s]", path)
}
return &ret, nil
case nil:
if !allowEmpty {
return nil, errors.Errorf("could not find uuid for path [%s]", path)
}
return nil, nil
default:
return nil, invalidTypeError(path, "uuid", t)
}
}
func invalidTypeError(path string, t string, observed any) error {
return errors.Errorf("unable to parse [%s] at path [%s], invalid type [%T]", t, path, observed)
}
func wrapError(path string, t string, err error) error {
if err == nil {
return nil
}
return errors.Wrapf(err, "error parsing [%s] as [%s]", path, t)
}
|